How to code a C++ program which counts the number of uppercase letters, lowercase letters and integers in an inputted string?

Question

I\'m looking for a simple and basic way (ideal for beginners to learn the easiest way) to write a program in C++ which gets a string from the user and outputs the number of

Answer 1

Try:

#include 
#include 
#include 
#include 

using namespace std;

int main()
{
    cout << " Enter text: ";
    string s;
    if(getline(cin, s))
    {
        size_t count_lower = count_if(s.begin(), s.end(), 
               [](unsigned char ch) { return islower(ch); });
        cout << "lowers: " << count_lower ;

        size_t count_upper = count_if(s.begin(), s.end(),    
               [](unsigned char ch) { return isupper(ch); });
        cout << "uppers: " << count_upper ;

        size_t count_digit = count_if(s.begin(), s.end(),    
               [](unsigned char ch) { return isdigit(ch); });
        cout << "digits: " << count_digit ;
    }
}